Stuff about
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                                                electronic computers
       
 (TXT) treewalk.c  - explaining stack-free traversal of trees.
       
 (TXT) pbf.c       - a Brainfuck prettyprinter.
       
 (TXT) energy.c    - measuring energy usage on Linux.
       
 (TXT) gph-mode.el - major-mode for editing .gph files.
       
       ## Random notes
       
       To use OpenCL or CUDA with address sanitizer, set this environment variable:
       
         ASAN_OPTIONS=protect_shadow_gap=0